EXHIBIT 21
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                     SPS TECHNOLOGIES, INC. AND SUBSIDIARIES
                         SUBSIDIARIES OF THE REGISTRANT

At December 31, 2002, the Company or one of its wholly-owned subsidiaries had,
among others, the following subsidiaries:


     AAA Aircraft Supply, LLC
      (a Delaware limited liability company)         87.5% partnership interest

     The Arnold Engineering Co.
     (an Illinois corporation)                              100% stock interest

     Avibank Mfg., Inc.
     (a Delaware corporation)                               100% stock interest

     Cannon-Muskegon Corporation
     (a Michigan corporation)                               100% stock interest

     Flexmag Industries, Inc.
     (an Ohio corporation)                                  100% stock interest

     Greenville Metals, Inc.
     (a Pennsylvania corporation)                           100% stock interest

     Greer Stop Nut, Inc.
     (a Tennessee corporation)                              100% stock interest

     Hi-Life ULMA Srl
     (an Italian corporation)                               100% stock interest

     Howell Penncraft, Inc.
     (a Delaware corporation)                               100% stock interest

     Jade Magnetics Limited
     (a British Virgin Islands joint venture)                60% stock interest

     Magnetic Technologies Corporation
     (a Delaware corporation)                               100% stock interest

     Mecair Aerospace Industries, Inc.
     (a Canadian corporation)                               100% stock interest

     M. Argueso & Co., Inc.
     (a Delaware corporation)                               100% stock interest






     Metalac S.A. Industria e Comercio                     99.4% stock interest
     (a Brazilian corporation)                (99.6 % voting, 99.1% non-voting)

     Mohawk Europa, Ltd.
     (an Irish corporation)                                 100% stock interest

     National-Arnold Magnetics Company
     (a California partnership)                       100% partnership interest

     NSS Technologies, Inc.
     (a Michigan corporation)                               100% stock interest

     SPS Aerostructures Limited
     (a United Kingdom corporation)                         100% stock interest

     SPS DACAR
     (a French corporation)                                 100% stock interest

     SPS International Investment Company
     (a Delaware corporation)                               100% stock interest

     S.P.S. International Limited
     (an Irish corporation)                                 100% stock interest

     SPS Technologies Limited
     (a United Kingdom corporation)                         100% stock interest

     SPS Technologies Waterford Company
     (a Michigan corporation)                               100% stock interest

     SPS/Unbrako K.K.
     (a Japanese corporation)                               100% stock interest

     Standco Canada, Ltd.
     (a Canadian corporation)                               100% stock interest

     Swift Levick Magnets, Ltd.
     (a United Kingdom corporation)                         100% stock interest

     Unbrako Pty. Limited
     (an Australian corporation)                            100% stock interest

The Company files consolidated financial statements which include the above
subsidiaries, as well as subsidiaries which have been omitted from the above
list; all such omitted subsidiaries considered in the aggregate as a single
subsidiary do not constitute a "significant subsidiary" as defined in Rule
1-02(w) of Regulation S-X under the Securities Exchange Act, as amended.


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